You never know who you'll bump into in an elevator. This Wall Street Journal interview series shows those short—and sometimes awkward—encounters can be enlightening. Going up!

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E21

In the Elevator With Top Silicon Valley Venture Capitalist Connie Chan

WSJ's Joanna Stern "bumps into" Andreesen Horowitz General Partner Connie Chan and gets her take on how the venture capital world can improve diversity, the biggest China tech trends and scooters. Photo: Andria Chamberlin for The Wall Street Journal

E20

In the Elevator With Hint CEO Kara Goldin

WSJ's Joanna Stern "bumps into" the CEO of Hint and asks how its water is different from LaCroix, how to work with your spouse and the biggest challenge facing female entrepreneurs. Photo: Andria Chamberlin for The Wall Street Journal

E19

In the Elevator With Coinbase CEO Brian Armstrong

WSJ's Joanna Stern "bumps into" the Coinbase CEO Brian Armstrong and asks him why we need cryptocurrency, how he spends it and if the dollar will disappear. Photo: Andria Chamberlin for The Wall Street Journal